Use S = n^2 to find the sum of 11 + 13 + . . . + 701

Use S = n^2  to find the sum of 11 + 13 + . . . + 701
in Geometry Answers by Level 1 User (800 points)

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

thats the sum av arithmatik sequens

start=11, step size=2, n=how many=346

sum=123,176

last number=start+(n-1)*stepsize=11+345*2=701

sum=n*averaej, weer averaej=(start+last)/2=(11+701)/2=712/2=356

so 346*356=123,176
by

Related questions

1 answer
how do i write 701,285 in expanded form
asked Oct 2, 2012 in Pre-Algebra Answers by anonymous | 1.5k views
1 answer
What is an equation for The sum of 32 and n is 59.13
asked May 26, 2017 in Other Math Topics by John | 1.2k views
1 answer
how do I solve (n+13) / ((n+11)(n+12))
asked Sep 8, 2013 in Algebra 2 Answers by anonymous | 667 views
1 answer
how do you get the sum of 24 by using the numbers 10, 11, 13, and 17
asked Mar 16, 2013 in Statistics Answers by anonymous | 779 views
1 answer
the sum of 11 and a number n
asked Jan 5, 2013 in Fraction Problems by anonymous | 768 views
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!

Most popular questions within the last 3000 days

  1. 50+50-25X0+2+2= (19)
  2. it takes 10 road workers 5 days to complete a road repair when working 2 hours a day.Working at the same pace,how many days will it take 2 people working 5 hours a day to finish it? (3)
  3. Solve 15 -1(12÷4+1)? (4)
  4. 8:4(5+2) (3)
  5. How can i represent 1/3; 3/3; 7/3; 10/3 and 15/3 on a number line? (1)

Most popular tags

87,516 questions
100,279 answers
2,420 comments
731,819 users